<template>

  <div>

    <el-container>

      <el-header><span @click="toIndex">vueblog</span></el-header>

      <el-main>
        <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">

          <el-form-item label="用户名" prop="username">
            <el-input v-model="ruleForm.username"></el-input>
          </el-form-item>

          <el-form-item label="密码" prop="password">
            <el-input type="password" v-model="ruleForm.password"></el-input>
          </el-form-item>

          <el-form-item>
            <el-button type="primary" @click="submitForm('ruleForm')">登录</el-button>
            <el-button @click="resetForm('ruleForm')">重置</el-button>
          </el-form-item>

        </el-form>
      </el-main>
    </el-container>

  </div>

</template>

<script>
export default {
  name: "Login",

  data() {
    return {
      ruleForm: {
        username: '',
        password: ''
      },
      rules: {
        username: [
          {required: true, message: '请选输入用户名', trigger: 'blur'},
          {min: 3, max: 15, message: '长度在 3 到 15 个字符', trigger: 'blur'}
        ],
        password: [
          {required: true, message: '请选输入密码', trigger: 'change'}
        ]
      }
    };
  },
  methods: {
    submitForm(formName) {
      this.$refs[formName].validate((valid) => {
        if (valid) {
          const _this = this;

          this.$axios
              .post('/login', this.ruleForm)
              .then(res => {
                const jwt = res.headers['authorization'];
                const userInfo = res.data.data;

                _this.$store.commit("SET_TOKEN", jwt);
                _this.$store.commit("SET_USERINFO", userInfo);

                _this.$router.push("/");

              })

        } else {
          console.log('error submit!!');
          return false;
        }
      });
    },
    resetForm(formName) {
      this.$refs[formName].resetFields();
    },
    toIndex() {
      this.$router.push('/');
    }
  }

}

</script>

<style scoped>
.el-header, .el-footer {
  background-color: #B3C0D1;
  color: #333;
  text-align: center;
  line-height: 60px;
}

.el-aside {
  background-color: #D3DCE6;
  color: #333;
  text-align: center;
  line-height: 200px;
}

.el-main {
  /*background-color: #E9EEF3;*/
  color: #333;
  text-align: center;
  line-height: 160px;
}

body > .el-container {
  margin-bottom: 40px;
}

.el-container:nth-child(5) .el-aside,
.el-container:nth-child(6) .el-aside {
  line-height: 260px;
}

.el-container:nth-child(7) .el-aside {
  line-height: 320px;
}

.demo-ruleForm {
  max-width: 500px;
  margin: 0 auto;
}
</style>